影像科学与光化学 ›› 1995, Vol. 13 ›› Issue (2): 122-128.DOI: 10.7517/j.issn.1674-0475.1995.02.122

• 研究论文 • 上一篇    下一篇

有组织介质中的偶合反应Ⅱ.溶剂对偶合反应动力学的影响

张拥军, 赵文芳, 胡萍, 任新民   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1994-07-16 修回日期:1994-11-15 出版日期:1995-05-20 发布日期:1995-05-20
  • 通讯作者: 赵文芳
  • 基金资助:
    国家自然科学基金

COUPLING REACTION IN ORGANIZED MEDIUM Ⅱ. SOLVENT EFFECT ON KINETICS OF COUPLING REACTION

ZHANG YONG-JUN, ZHAO WEN-FANG, HU PING, REN XIN-MIN   

  1. Institute of Photographre Chemistry, The Chinese Academy of Scimes, Beijing 100101, P. R. China
  • Received:1994-07-16 Revised:1994-11-15 Online:1995-05-20 Published:1995-05-20

摘要: 本文采用连续流动装置,结合数学模型方法,测定了油溶性成色剂分别分散在邻苯二甲酸二丁酯(DBP)、N,N-二乙基十二烷基酰胺(DEDA)和磷酸三丁酯(TBP)三种溶剂中的油珠在明胶层中分别与彩色显影剂CD-2、CD-3、CD-4和CD-6的氧化产物QDI2、QDI3、QDI4、QDI6进行偶合反应的比速率常数,研究溶剂对油珠分散状成色剂的反应速率的影响。结果表明,溶剂对偶合反应速率的影响很大,一般来说,KDBP>KTBP≥KDEDA.对同一种成色剂而言,它分别与QDI2、QDI3、QDI4和QDI6进行偶合反应的比速率常数值可以表征各种显影剂氧化产物的活性。结果还表明,QDI2、QDI3、QDI4和QDI6的活性顺序随着成色剂溶剂的不同而不同。本文对上述实验结果进行了分析,并从有组织介质中的反应的角度进行了讨论。

关键词: 有组织介质, 界面反应, 偶合反应

Abstract: A flow apparatus and a numerical model were used to measure the rate constants of thecoupling reaction of dispersed couplers dissolved in DBP, DEIJA and TBP with 4 QDIs respectively in gelatin layer.The results show that the dispersion solvents have great effect oncoupling kinetics. In general,coupling rate constants decreases in the order KDBP>KTBP> KDEDA, when they were used as a dispersion solvent respectively. The results also show that when dispersion solvent is different, the activity order of 4 QDIs is different. The discussion was given in the view of reaction in organized medium.

Key words: organized medium, interfacial reaction, coupling reaction